He probably isn't lying to you but his info may be wrong. 69k is a lot. But I wouldn't be too surprised. If limited edition, GM may be thinking fanboys will selll out the car with pre orders just to own a Z28. If so, they're overestimating.

I'm sure fanboys would preorder a Camaro that had a Z28 badge on it. Which is why they aren't building any Z28s - only Z/28s